Type |
Plate flange ,Lap Joint Flange ,Threaded flange, Socket Welding Flange, Blind Flange, Slip on Flange |
Technics |
Forged,Cast. |
Size |
1/2"-80"(DN15-DN2000) |
Pressure |
150 lbs - 2500lbs PN6-PN250 0.6MPa-32MPa 5K-30K |
Standard |
EN,DIN,UNI,BS,NF,ANSI,ASME,JIS,KS,API,MSS DIN:DIN2527,DIN2566,DIN2573,DIN2576,DIN2641,DIN2642,DIN2655,DIN2656,DIN2627,DIN2628,DIN2629,DIN 2631, ANSI:ANSI B16.5,ANSI B16.47,MSS SP44,ANSI B16.36,ANSI B16.48 BS4504, BS1560, BS10 UNI:2276 2277 2278 6084 6089 6090 2544 2282 6091-6093 JIS |
Material |
Stainless steel: ASTM A182 F1, F5, F9, F22, F91, 310/F304/304L/F316/F316L, F321, F347. |
Surface
treatment |
Galvanized(hot,cold),varnish Method rust oil Plastic spraying |
Application Fields |
Chemical Industry /Petroleum Industry /Power Industry/Metallurgical Industry Building Industry /Ship-building Industry |
Founded in 2013, Wenzhou Long'an Flange Co., Ltd. is strategically located at No. 620 Mingzhu Road, Longwan District, Wenzhou City, Zhejiang Province, China. By capitalizing on Wenzhou's exceptional regional advantages and leveraging the efficient and abundant raw material supply from Qingshan Holdings Group, coupled with our robust forging and machining capabilities, we have meticulously established a comprehensive production system for Longan flange.
Presently, the company boasts an impressive array of over a hundred CNC lathes, adept at processing high-precision workpieces with diameters under 2000mm, alongside 10 machining lathes designed for handling heavy workpieces and large tubesheets exceeding 2000mm in diameter. Our facility is further enhanced by 16 high-precision machining centers, including six three-axis, three four-axis, three five-axis centers, three large gantry machining centers, and a two-meter horizontal machining center. This advanced equipment suite ensures that every customer's product is expertly processed on-site, allowing us to rigorously control and guarantee the quality of each link in the production chain, while meeting the stringent high-precision requirements of our clientele. Our powerful equipment configuration comprehensively addresses all product research and development needs, offering the most convenient and efficient services for innovative product advancement.
Our company is equipped with a sophisticated online ERP system that seamlessly integrates with the workshop network, managing every stage from raw material entry to finished product exit. This enables paperless production and ensures pinpoint accuracy of data for each product. Simultaneously, the system allows for impeccable quality control at every production link, utilizing digital processes to maintain the highest standards of quality assurance, ensuring each product meets rigorous requirements.
The company is also equipped with independent laboratories, featuring a diverse range of testing equipment. This includes fully automatic direct reading spectrometers, handheld spectrometers, spectral alloy analyzers, hydraulic universal material testing machines, and pendulum impact testing machines. These advanced tools ensure comprehensive testing and quality assurance for our products.




